
.img-responsive{
  display:block;
  max-width:100%;
  height:auto;
}
.center-block{
  margin-left: auto;
  margin-right: auto;
}
/**
* For modern browsers
* 1. The space content is one way to avoid an Opera bug when the
*    contenteditable attribute is included anywhere else in the document.
*    Otherwise it causes space to appear at the top and bottom of elements
*    that are clearfixed.
* 2. The use of `table` rather than `block` is only necessary if using
*    `:before` to contain the top-margins of child elements.
*/
.clearfix:before,
.clearfix:after {
  content: " "; /* 1 */
  display: table; /* 2 */
}

.clearfix:after {
  clear: both;
}

/**
 * For IE 6/7 only
 * Include this rule to trigger hasLayout and contain floats.
 */
.clearfix {
  *zoom: 1;
}
